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Fixed the implemention of the IF-M segmentation protocol

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The first segment only fit if the segmentation envelope attribute
was preceded by a Max Attribute Size Response attribute. The
improved implementation fills up the first PA-TNC message with
the first segment up to the maximum message size.
This commit is contained in:
Andreas Steffen
2015-08-18 21:24:26 +02:00
parent 6bd1216e7a
commit 10f25a3dd9
13 changed files with 97 additions and 51 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/libimcv/plugins/imc_swid/imc_swid.c
+2 -4
View File
@@ -1,5 +1,5 @@
/*
* Copyright (C) 2013-2014 Andreas Steffen
* Copyright (C) 2013-2015 Andreas Steffen
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
@@ -134,9 +134,7 @@ TNC_Result TNC_IMC_BeginHandshake(TNC_IMCID imc_id,
/* Determine maximum PA-TNC attribute segment size */
max_seg_size = state->get_max_msg_len(state) - PA_TNC_HEADER_SIZE
- PA_TNC_ATTR_HEADER_SIZE
- TCG_SEG_ATTR_SEG_ENV_HEADER
- PA_TNC_ATTR_HEADER_SIZE
- TCG_SEG_ATTR_MAX_SIZE_SIZE;
- TCG_SEG_ATTR_SEG_ENV_HEADER;
/* Announce support of PA-TNC segmentation to IMV */
contract = seg_contract_create(msg_types[0], max_attr_size, max_seg_size,
src/libimcv/plugins/imv_attestation/imv_attestation_agent.c
+2 -4
View File
@@ -1,6 +1,6 @@
/*
* Copyright (C) 2011-2012 Sansar Choinyambuu
* Copyright (C) 2011-2014 Andreas Steffen
* Copyright (C) 2011-2015 Andreas Steffen
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
@@ -484,9 +484,7 @@ METHOD(imv_agent_if_t, batch_ending, TNC_Result,
max_seg_size = state->get_max_msg_len(state)
- PA_TNC_HEADER_SIZE
- PA_TNC_ATTR_HEADER_SIZE
- TCG_SEG_ATTR_SEG_ENV_HEADER
- PA_TNC_ATTR_HEADER_SIZE
- TCG_SEG_ATTR_MAX_SIZE_SIZE;
- TCG_SEG_ATTR_SEG_ENV_HEADER;
/* Announce support of PA-TNC segmentation to IMC */
contract = seg_contract_create(msg_types[0], max_attr_size,
src/libimcv/plugins/imv_os/imv_os_agent.c
+2 -4
View File
@@ -1,5 +1,5 @@
/*
* Copyright (C) 2013-2014 Andreas Steffen
* Copyright (C) 2013-2015 Andreas Steffen
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
@@ -542,9 +542,7 @@ METHOD(imv_agent_if_t, batch_ending, TNC_Result,
max_seg_size = state->get_max_msg_len(state)
- PA_TNC_HEADER_SIZE
- PA_TNC_ATTR_HEADER_SIZE
- TCG_SEG_ATTR_SEG_ENV_HEADER
- PA_TNC_ATTR_HEADER_SIZE
- TCG_SEG_ATTR_MAX_SIZE_SIZE;
- TCG_SEG_ATTR_SEG_ENV_HEADER;
/* Announce support of PA-TNC segmentation to IMC */
contract = seg_contract_create(msg_types[0], max_attr_size,
src/libimcv/plugins/imv_swid/imv_swid_agent.c
+2 -4
View File
@@ -1,5 +1,5 @@
/*
* Copyright (C) 2013-2014 Andreas Steffen
* Copyright (C) 2013-2015 Andreas Steffen
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
@@ -446,9 +446,7 @@ METHOD(imv_agent_if_t, batch_ending, TNC_Result,
max_seg_size = state->get_max_msg_len(state)
- PA_TNC_HEADER_SIZE
- PA_TNC_ATTR_HEADER_SIZE
- TCG_SEG_ATTR_SEG_ENV_HEADER
- PA_TNC_ATTR_HEADER_SIZE
- TCG_SEG_ATTR_MAX_SIZE_SIZE;
- TCG_SEG_ATTR_SEG_ENV_HEADER;
/* Announce support of PA-TNC segmentation to IMC */
contract = seg_contract_create(msg_types[0], max_attr_size,